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Our drinking water in Mumbai is under threat due to puncture of main pipes by residents of illegal slums.

The photo above taken by our Residents Forum shows the main BMC line which was punctured by the water mafia.

The main water pipe supplying water to millions of residents, as a result of this horrible pilferage, is open to reverse contamination by sewage from nearby open air toilets in the slums.

How do we detect and confirm if there is actually fecal contamination of our water? It is actually quite easy. Human feces contain large quantities of a bacterium called E Coli. These bacteria are also known as Coliforms, and are not found anywhere else in nature. If we can detect the presence of these bacteria in water, it confirms that there is contamination of the water by feces.